Drawing board



FIG. 1 is a perspective view of the drawing board;

FIG. 2 is a front view of the drawing board;

FIG. 3 is a left side view of the drawing board;

FIG. 4 is a right side view of the drawing board;

FIG. 5 is a top view of the drawing board; and,

FIG. 6 is a bottom view of the drawing board.

The broken lines in the drawings are included to show portions of the drawing board that form no part of the claimed design. 

CLAIM The ornamental design for a drawing board, as shown and described. 